9 dpo

Katelynn
I got a positive opk on cd 15 and my LH lever went way down after to barley a noticeable line in the opk. But Idn why I took one today but I did and it's not positive but it's definitely darker than the barley noticeable one. So I am kind of confused on why I'd be on the verge of a surge again..?
I no people say when Af is on her way but I'm only  9dpo.